Oscillating electric fan.



H. S. BROWN. OSOILLATING ELECTRIC PAN. APPLICATION mum n.5, 190s.

' Patented Jan. 5, 1909.

4 SHEETS-SHEET 1.

lvi l meaoeo b v kn um W hw 5 H. s. BROWN. OSGILLATING ELECTRIC FAN.APPLIUATION FILED JAR. 5, 1906.

908,736. 1 Ptented Jan. 5,1909.

4 SHEETS-SHEET 2.

al C 1 177 573 i '2 4 5 8 2 m o i J l APPLICATION FILED JAN.5, 1906.

Patented Jan. 5, 1909.

4 SHEETS-SHEET 3.

ZZZ- y- 72 H. S. BROWN. OSOILLATING ELECTRIC PAN. APPLICATION FILED JAN.6, 190g.

Patented Jan. 5, 1909.

4 SHEETS-SHEET 4.

- HERBERT s. BROWN, OF- NEW YORK, N. Y.

' I no. 908,735.:

' Toqall whom it ma concern: t

' ';Be'it known that L'Hsntnnr S. BRO N,

M a citizen "of the United States, residing. in,

-- New Yorkcity, borough of Manhattan, New

- O SCILLATING ELECTRIC FAN.

York,.have invented certain new and useful Improvements in OscillatingElectric Fans,

- :of which the following is a specification. I My invention relates toimprovements m T oscillating electric fans, and it has for its object toproduce a structure wherein the-fan is capable of oscillating.automatically, 1n'

substantially any plane, without requiring j the use ofgears orof vanesor their equiva- J lents, employing a single pivot only, and

operative irrespective of an angle by which ts supporting or horizontalplane, being capable of support from beneath, from a side wall, or fromthe ceiling or other pendent positiom Thesaid. objects of my inventionmay be 'attained -bysmeans of thenovel detailspf improvement andcombination of forces inherent in the structures that. will bemoreelevation of a fan structure showing a modi p and as described inmyending application;

fully hreinaftersetforth and then pointed out in the claims. p

' Referenc'eis to behad to the accompanying drawings forming parthereof,wherein,

Figure- 1., is an'elevation of a fan structure embodying myimprovements, Fig.2, is a detail view, looking from the'left in Fig. 1,of. the support for'thefanandits motor, Figs.

.3, 4, 5 arese'ctions, r s ectively on the lines 3, 3; 4, 4, and 5', 5ofli ig 2,"F1g. 6, is a side fication in .details, Fi 7 is a side view,

' lookingfrom the left in ig. '6, of the support for the fan and itsmotor, Figs. 8,9, and 10 are sections, respectively, on the lines, S, 8;9,- 9,-and'10, 10 inFig. 7, Fig. 11, is a plan view, on a reduced scale,of Fig. 6,'illustrat ing acircuit for. the motor, Fig. 12, is a sideelevation of a fan adapted for the utilization of gravity, and showingmodified means'for controlling the circuit "of the motor, Fig. 13, is arear view thereof, Figs. 14, 15 and 16 are diagrammatic viewsshowingdifierent forms of pivotal supports forthe fan and its motor,Figs. 17, 18, and 19, are diagrammatic views illustratingsome of thedifferent positions in which myim roveinents may be operativelysupported. ig. 20 is a detail view illustrating anjofi -center supportfor the fan motor. I a

The ,jvarious'gjforce and combinations of forces utilizedin,;myinvention are: (1)lever- A Specification of Letters Patent.Application filed-January 5, 1906. Serial No; 294,696.

by the fan, operative whenever. the axis'of ase mayvaryfrom the levelPatented a, 1909.

' age action of the fan 'bladesu on the air,- produced when the planepfthe lades is set at an angle to the axis of the pivot of oseilla- 1tion, causing onebladef always -to,be, at a '50 greater distance orleveragefrom the pivotal axis than the blade opposite, as is'familiarin. theart as, for instan'ce,-as shown in the patent to Wood, No.697,697, of April 15,- 1902,

which shows a revolving fan structure-L .(2)

back pressureof the column 'ofair propelled the fan shaft is off centero'r-to one side-ofthe pivot of oscillation, 'asfamiliar in the regy 7Qarts are cent development of the art. scopic action of the rotatingpartsof the fan structure, present whenever said laced at an angle tothehorizonta as more ully'describedin my Patent No; 809,356,

' dated Jan. 9, 1906. "In addition to these three primary forces .threeresultant or seesional reaction of a'twisted cord or strandsof elasticmaterial, tending 'to return astructure aifixed to'one end of saidmaterialto a centralpoint of equilibrium of the elasticfor torsionalmateriahwheneverthe structure rotated to onejs'ide ortheiother of thiscenter, j as described fully in.- my above mentioned patent. (b)the'reaction' of one-or'more coiled, spiral, ,or'other springs tomovement of theffan structure to. either side of a central point ofequilibrium, substantially 'e uiva ent to the torsional reactiondescribed a ove',"

for Letters Patent filed ugust 10, 1905, Se -f' rial No. 273,550. 1 (0)the action of gravit upon an unbalanced pivoted structure, ten

mg always to move the-center of-gravity of the system to the lowestpossible pomt, as de scribed in my ending application for LettersPatentfiles ber 113,216,. and in aforesaid application, Serial No. 273,550.

Experiment appears to show. that any one ioo forces above mentioned,substantially unai ed, may cause oscillation of the three prime of afan, provided'automati'c means are used wherebysaid force is madeto actalternately.

poslte directions, such means, as I am in o familiar withthe art,consisting mostly of structures whereby surplus energy ofthe ac-.tuating force maybe stored u and at suitable points be dischargedagamsta fixed or elast1c stop with sufiiei ent Impetus toshift ondary forces,'develo ed by the action of the.

primary forces, may eutilized: (a) the tor-j- June 26, 1902',Seri'al.Numj patent operates which variations, ail.

a primary force (or combination offorces) is combined with a secondaryforce (or combination of forces); to produce oscillation withoutnecessary reversal 1n direction of the primary force, the essentialfeature here againbeing ameans whereby the, point of rest of theopposing forces is automatically varied.

The suspending device shown in my said by means of intermittentvanations in the current supplied to the motor, eating the back pressureof the columnoffpropelled air, vary the angle posed I y the reaction ofone or more s of inclination o ttejfan structurewith respect totnehorinontal and to the supporting cord or pivot, thus .varying theintensity of both the leverage and, the gyrosco ic action. Theselatter'tilen directly act to disturb the point of equilibrium betweenthemselves and the torsional reaction of the supporting structure, andthus maintain oscillation.

In the preferred form of my present invention the'dependence upon backpressure is omitted, it having been found that variation in any singleone of the three primary forces, due to variations in the currentsupplied to the motor, is sufiicient tomaintain oscillation he forcesutilized are properly proportioh In 1 he preferred form of --mystructure (Figs. 1 to 11) I have useda combination of levera e. actionand gyroscopic action, op

prings.

have found that this combination affords the nearest approach touniversal ap licability, with aminimum of adjustment fiir operation indifferent planes.

Proceeding now to describe the structures and the operation of mypresent improvements, I refer to the drawings, Figs. 1 to 20 inclusive,in which the numeral -1 indicates a fan, shown of the'propeller type,carried by a shaft 2 of the electricmotorB, which parts may be of anywell a pivotal sup ort whereby said cased with 7 ing and fan maylo'sciate. In theexampl'e illustrated I have shown the support 4 gen-Referring now to to 5, I have illusknown or suitable con-. struction.The casing of motor 3 IS COIIIIGCt vthe resistance 1 as trated meansfor. normally holding the fan and its motor in a position of rest whilepermitting oscillation thereof, arranged as follows z-In order to securea leverage action of the fan blades, the axis of the fan shaft 2 isinclined slightly from the perpendicular to the axis of the supportingpivot 5; and the fan 1 and motor 3 are then symmetrically balanced withrespect to the pivot 5. A flat spiral spring 7 freely surrounds post 4and is attached, as at 7, to said post and at its other end said s ringis connected with a stationary part, as to a projection 8 connected withpost 4*, in the example illustrated said projection being carried by asleeve 9 mounted upon post 4* and frictionall y held thereon, but sothat said sleevemay be adjusted angularly by hand. The spring 7 is incircuit with a line wire a, and with a terminal of the motor 3,. as bywire 0; The other terminal of the motor is connected by a wire (1 withthe line wire e and in the example illustrated, I provide a spring 11connected with wired and loosel surrounding post 4 and connected atoneenrl with said post, as at 11, the wire (1 being connected withspring 11, and at the other end said spring is connected with aprojection 12 that 18 connected with the part 4 as with the sleeve 9.The projection 12 is so situated that spring 7 may freely uncoil. I

have shown the 8 ring 7 as provided with a contact finger 7 that engagesacircular'contact 10 carried by sleeve 9 and less than a completecircle, wherebythecircuit of line wire a will be maintained closedduring part of the oscillatoryfmovements of the fan and its motor, andwhereby the direct circuit through wire a will be broken at or near oneor both terminations of the desired oscillatory arc of the motor. Forthe urpose of reducing the strength or flow of tie current passingthrough the motor at oi near a termination of each oscillating movementthereof while still maintaining a flow of current.

provide a suitable resistance a: connected with line a and with spring7, as by a wire I), so that when the circuit through a is broken byfinger 7 b breaking circuit with contact 10, at or near a termination ofthe oscillatory movements of the motor, the circuit will be continuedthrough the resistance 2: thereby reducing momentarily the flow ofcurrent 7 through the motor and causing a momentary reduction of speedof rotation of the fan. It will be understood, however, that if theresistance a: were not used and the finger 7 were permitted to breakcircuit completely with the line wires at or near a termination of theoscillating movements of, th power of the motor would be reduced in'muchthe same manner.

above stated so as not to completely break the circuit through the motorduring operation. By adjusting or bending the contact 10 the point orpoints at 0 motor the M I prefer, however, to use;

which contacti'is was my be shifted at 'WIll, thus'regulating. theextent of-the oscil- ,1 latory movements.

xiThe-vspring .15

' Tjthe. fan and its motor normally'rest in a 4 v 7 and11-wind inopposite directions and are of such relative tension that .certainposition of; equilibrium; the two springs for the purpose of reactionactin'g'sub--v stantially as onespring. When now the cu r-' 1 10.

rentis started through the motor-and the fan blades commence to revolve,the pivoted fan turn as it proceeds.

passing the slightadditional push Withthe hand during the firstmovement,'though this is not neces 'sary' when the fan is working in theparticular-plane for. which it' has been ad usted,

reverse saidrnovement quickly were 1t not for moinentum -wh chactmgjagainsti the serves to: overcome their force 'and' The-sp'ringsft7 and 11- now react, opposing movement upon pivot 5,,andwould stop and sprin-lgs lengt 'enout the arcof oscrlfation.' Momentumjhowever, dies out asthe increasing tensio'n-ot the springs c'ausesxthe'oscillatorymovement to slowhup, and at some point the force of thesprmgs overcomes and reverses lating' back. and forth,- fin arcs tendingto decrease until-finally the structure would come to rest' at thepoint, olf' nOrmaI equi-.

I librium., But by rea sori of variationsflin theare intermittentlyvaried, thus the other operative factors,- andthe structure begins to'return toward a point. at p all the forces are balanced or inequilibrlum. But by reason ofmo'mentum,'whichincreases- 'as'thestructure 'i'ravels back toward the point of equilibrium, thisfpointis passed and the structure moves'to the other side of the ,arc ofoscillation, momentum now opposing the combined forces of leverageandvgyro scopicv actionsand the springs until these forces overbalanceit and cooperating return the; structure to and again ast the point ofnormal equilibrium, the an thus oscilcurrent supplied to the motor, orto parts of it,- as existing in all commercial circuits; oras caused byirregular commutation the" fan'motor or automaticallyproduc'edconnection with the scillat'ory movements of the fan structure, theleverage and gyrothe' fan sturbing the point of'equilibrium of theoperative forces and causing it to shift from time to scopic forcesutilized in oscillating; 1

time. I find that these variations and con-.

sequent shiftings of'the' point of normal equilibrium are sufficient,even without being automatically augmented'in connection with theoscillatory movements of the fan,

operation,

to overcome frietionand'maintainoscillation ofthe fan structure: '1

'In'thls explanation for clearness' I- havepurgosel'yomitted referenceto the function '70 oft e resistance as, Fi 1, and explained theoperationas though t V is resistanoe'wereexi actly equal to that throughthe main circuit a, .or as though there were no automatic cutouti of themain circuit; as; shown in Figs.

- '1 to Y 311. is utilizedinthe; present inodificat onsflof the broadfeaturesof my invention merely as ag'brake or-cheekfto F rventQexgfcutout in thecircuit, as in-r g ia This -Z5 cessive oscillationorracing ofit evstructure about the. pivot 5 when bygchanceexcessivevariations in. the currents sup lied to" the motor shift-the normalcenter 0 equilibrium:

more than is 1 required to pfiset'fnctiongand pose I haveth'e. maincircuit {broken pref? forces impel the structure, the break 'on the tendto build; up jlonger --c:an"d l; more rapid oscillationsthan aredesired,- For thispurs5 erably on the sidetoward-which'the primary'opposite side being jadjusted ata point rarely y Ereached. By slightmodificationsin this cir-' .p cuit interruptingdevicel findit possibleto use this. device "to assist in the-intermittent variatioln's ofcurrent-upon whichlI depend to maintain oscillation; but ias suchvariationsaresuflic entj for the des red purposewithoutaut'omaticassistance, I have not shown such-"modifications in thepresent structure, theipresent function of the cut out or interrupterjbein merely. cooperative with and regulativeof t e main actuatingforces as described above. 1

1 'When it is desired to'shift the'diietfiqn of g the air currents.fiowingffrom the fan the sleeve-9 may "be turned around thep'a'rt 4.,

which will cause "the springs7 and 11 to shift with respect to base6;.totl'1ereby alter thev position of the axis of thenfan', "instead ofsame ptrposeif desired.

springs 7 and 11 as in. convo1ute' form, substantially the sameresultsfmay be accomplished by utiliz in a' cord 'or strands ofelasticmaterial as iliis'trat'ed in my aforesa d To this our and to provide forincludin the of oscillation of the fan structure-in, one di rectionorboth, I provide in'this inodification the followingarrangement TheWire a connects with a contact a and the sprin'g7 is connected with awire or spring '13 thatis sect red'at its other end to the sleeve 9, asby a sci ew 14, the contact, 13 beingnormally in engagement withcontact. a. The contact 13 is connected with wire b, as by wire beonshifting the baseG, though' it willbe'understood that the base 6 maybe shifted for the, 'Wh le 1n Figs; '1, to'5i IT-have shown the LettersPatent No. 809,' f 56, or by utilizing r 'spi'ral springs 7 11", as'mF1gs. .6. to 11, the a spring 7 bemg'connected'withiwires a and b,

while the s ring 11 is connected with wire e.

1202 resistance a: in the circult at or near the imit fan oscillateswill move said wlre out of ennected with screw 14 and with a screw 15 onsleeve 9 to which 'wire bis also connected.

I hen the fan structure rotates, as to the left in big. 11, and arrivesnear the limit of its movement in that direction, the tension of spring7 will lift contact 13 out of engagement with contact a and thus breakthe direct circuit through line wire a and thereby include theresistance a: in the circuit, thereby reducing the potential of thecurrent through the motor to cause a momentary reduction in s eed ofrotation of fan 1. In order to regulate or adjust the time at whichcontact 13 will disconnect from contact a the contact 13 maybe ut undermore or less tension, and thismay e done by attaching the wire 13rigidly to screw 14, as by assing the wire 13 through a hole 14" in saiscrew (Fig. 10), and then byturning said screw to the right or left;thus the spring 7 when the agement with contact a" sooner or later. ldefrom the form of the s rings and circtit interru ter 1 sed, themodification of my invention s own in 1 igs. 6 to His substantiallyidentical with, and operates in the same manner as, the structure shownin lsigs. 1 to 5. i in the form of my invention illustrated in Figs. 12and 13 I have shown ho'wlgravity may be utilized as a-reac'ting forceinstead of a spring or springs shown in ligs. l to 12. In order toconduct the current supplying the motor past the junction of the fixedand moving arts of the structure, I have shown contact gers 7, 11,connected with suport4, as bythe sleeve 9 thereon, which] ngers engageannular contacts 15, 16 carrie by post 4, the fingers 7, 11 sliding on lthe contacts 15, 16 during oscillation of the i fan structure. In thisform of the invention, as in the forms shown in ligs. 1 to 11, leverageand g roscopic actionsare utilized as the primary cross in theoscillation of the fan, the plane of the fanblades being inclined to theaxis of the support 4, and the axis of the support 4 being inclined withrespect to the horizontal. 1

In order to regulate and control the ex tent of gravitational reactionat will, the pivoted structure is made adjustable transversely with resect to the axis of support 4, and to this en I have shown a screw 17meshing in a threaded hole-insupport 4 and extending transverselythereof and connected with the casing of fan 3, by a yoke or frame 18attached to said casing, and in which yokejor frame the screw 17 isjournaled. Guides 18" on said frame, bearing against sup 'ort 4, orentering recesses therein, serve to alance and center the fan structureupon the su port. By this means the fan structure can )9 adjusted moreor less to one de of the of support 4. to thereby induce a more or lessforcible gravitational reaction of the fan structure during oscillation.The base 6 may be adjusted to adesired angle with res ect to thehorizontal to thereby deflect the an blades or toaflect thegravitational reaction as by 19 connected with said base.

Figs. 14, 15 and 16 illustrate diagrammatically different ways ofsupporting the fan structure for the purpose of utilizing the forcesbefore mentioned or combinations of forces. In each of the saidstructuresthe operation is substantially identical with that describedin my Patent N 0. 809,356, referred to above. In Fig. 14 the fan casingis mounted upon the pivot 4 and has a depending .wei ht portion 3, inthe so'clret3 of which t e su port 4 passes, the'tende'ncy of which isto a ways return the, fan structure to a position of equilibrium, thedepending weight 3 thus acting against and varying the forces employedin operating the fan structure for causing oscillation of the latter. InFig. 15 the fan casing is supported from ried by the .pivotal'support'4, said spring permitting the fan structure to swing bodily rearwardlyunder the varying ressure of the column of air flowing from t e fanblades,

means of screws above b means of a curved s ri 3 carthus varying themovement of the fan structure'about the supporting device as a pivot.

In Fig. 16 the fan structure is supportedin the manner of a universaljoint by means of a yoke 20 carried by pivot-Sand having a horizontallydisposed shaft 21 pivoted to the yoke above the motor casin to whichshaft saidzcasing is attached. n this case the back pressure of the airupon the rotating fan blades causes the fan structure to swingrearwardly on the axis of shaft 21, thereby changing the leverage actionof the blades upon the surrounding air and causing the fan structure tooscillate more or less rapidly according to such leverage action.

Figs. 11 18, and 19 illustrate diagrammatically means for supporting thefan structure in such a manner that adjustment can be made to direct theair current flowing from the fan at different angles to the horizontal.In'this modification the sustaining post 4 for the motor is shownconnected with a base 6 by a clamp joint 6, which may be in the form ofa screw 6 provided with a nut fi c'onnecting the part 4 with base 6 by alug 6% By this means when the base is held substantially horizontallymin Fig. 17 the fan structure may be moved to one side of the verticaland held "in, position by the screw and nut; if the base 6 be attachedto a wall, as in Fig. 18, the fan structure may also be inclined to thevertical as desired and held in such position by the screw and nut; andif the base be attached to a ceiling or over-head support, as in Fig.19, the fan thereof. on the opposite sideof 1 1n- Figs} 17, 1 8,19 and20the a azement;

f tially the samew'ay.

Having-now described verticaland held in such position. In either tionsin the flow of. current through the. fan

case the fan structure maybe adjusted so.

{that the'axis of. oscillation. of the fan struc- 1 5 ture willbeverticalgif desired.

3 The balancing of the pivoted structure symmetrically with res ect tothe pivot of oscillat on,- as shown in igs. l to 1'1 and 17 to 20, makesthe device substantially intion equally well in any plane; except thatthe g'yroscopic action increases in proportion ast e I an anglevof',from either thevertical or 15 if disturbingforce ondevicesi notspecially 'ad-: qustedfor operation at excessive angle'sfrom dependentof gravity and capable of, operaaxis of the rotating parts approachesthe horizontal, and to some extent acts as a the horizontal.' I findthat an inclination of 1 the fan axis of ten to fifteen degrees from thehorizontal in either direction does 'not ma- -terial'ly-disturb theaction ofa fan adjusted to' wo'rk near 'thehoi 'izor ital,.witli' a veryslight-Bgyroscopic'comdponent.

I g.v 20, 'instea 6f sustaining the fan structurein such manner asto-utiliz'e levere'of the fan blades upon thesurrounding air, I haveshown an arrangement whereb' {the-fanstructure isrpivotally'sup .rted'ocenter wherein the connection oft eisupport 4 with theiniotor casing isat oneside off-a; plane passing .vertical-ly==through the axis of.

'the fan blades ormother words the line 8 It Pa through. the a s of suport 4 is at Dno side of theaxis-of th fan 8 aft it t.

'35 111' W "to balance the struct e ith r -l li its, counterweight onthecas-iiig of the. motor.

assumed to be substantially similar, to those I 'shown. inFig's. 1 to 11and operate'su-bstan Iclainiisi- 1L The combination, with an electric.mo- .topd -ivenjtan: havin fits axis. placed at an ,angle totheverticagai'id arran ed to de- 1 liver a stream .Qf a'irin the general rectionof defice'asfia-pivot, whereby variationsin the tain oscillation of the,fan;

2. The combination in a pivotal fan struc- Ienceeded by. the reactioncaused by said I invention what ally said axis,'- ofa pivotal supportingdevice has neathfthe' fan' 'an'd connected therewith his; .;-ing -m'eansfor producing reaction to the "movement of the, fan about the supportingcurrent supplied to t e motor serve to mainmotor during its operationcause thefanto; oscillate.

may here also be inclined at an angle to the I mechanical-means, allarranged so that VBJI'lite- The combination in a pivotal fanstr'uc}.

ture of means'whereby gyroscopic action acts. to rotate thefanm onedirection, mechanical .means connected-with-said structure and."

simultaneously rea'ctingto rotate it in thoi, opposite direction, andautomat cmeans con tions in the flow of current through the fanv S h ngits operation cause .the fan. tg oscillate. a

' 4, The combination of an. electric inotordriven fan, means forpivotally sustaining said fan, and r neans for producing an oscilla-'tory movement of the fan with automatic means connected with the fanandcontrolled by its oscillatory movement for Varying the its-operation.1 5-. The combination of an oscillating else:

how of current through the fan motor during trio tan, with an automaticinterrupter. for I thecurrent supplied to the fan motor con-- grolled byoscillatory movement of. the

The combination of an electric motordrivenfanhaving its axis placed atan angle 3 to the vertical and arranged to deliver a stream of. air .inthe general direction of said axis,.\=means for. pivotally sustainingsaid fan,

nd; means for reducing an .oscillatoi'y ovement of the an with automaticmeans.

ilow of current through the fan motordurin'g its operation. i a 7 Thecomhinationfofan oscillating elecconnected. with the fan and controlled.by ithe os'cillationsof the fan for varying the trio motor-driven fan,.and means for pivotsustaining said fan, with means 'con-. trolled bvcurrent; t rou h the fan motor at or near-a termination o theoscillatory movement of the-fan.

the fan for altering the flow of 8. The' combination of van oscillatingelecf tric' motor-driven fan and means for pivot ally sustaining saidfan, means for alter ng the flow of current through the motor during itsoperation and means controlled by the fanfor reducing the otential ofthe current flowing throu h the an motor ator near a termination 0 itsoscillatory movement.

9; The combination of" an electric motordriven'fan, means for pivotallysustaining. 1

sai d'fan, and means for producing an oscillatory movement of said fan,with means for connecting the fan motor with linewires,-

producing reaction to the movement of the ,fan about its'sustainingdevice, and means 1 associated with the fan and controlled by theoscillatory movement of the fan structure and'located in themotorcircuit for causing variation in the flow of current to the motor""during its operation.

11. The combination with an electric motor-driven fan, of means forpivotally sustaining said tan and motor, means effective through themotive power whereby the fan is turned upon its pivotal support, meansfor producing reaction to the movement of the tan about its sustainingdevice, and means operated with the fan and operativel y located at ornear a termination of the oscillatory movement of the fanand located inthe motor circuit and controlled by such movement of the fan for causingvariations in the flow of current to the motor during its operation.

12. The combination with an electric motor-driven fan, of means forpivotally sustaining said fan and motor, means .efi'ective through themotive power whereby the fan is turned'up'on its pivotal support, meansfor producing reaction to the movement of the said fan about itssustaining device, means for connecting the motor with line wires, aresistance for the motor circuit, and means operated with the fan forthrowing the re sistance into direct circuit with the motor at or near atermination of theoscillatory movement of the motor for varying the flowof current through the motor during its operation.

13. The combination with an electric motor-driven fan, of means forpivotally sustaining said fan and motor, means effective through themotive power whereby the fan is turned upon its pivotal support, meansfor reducing react-ion to the movement of the ian-aboutxits sustainingdevice, means for connecting the motor with line wires, aresistancecoiinec-ted with one line wire, and

means included in the motor circuit operated by and with the fan forbreaking the normal circuit of the motor through the line wires andincluding said resistance in the circuit of the motor at or near atermination of the oscillatory movement of ,the fan for varying the fiowof current through the motor during its 0 oration.

14. The com ination of a fan and its motor, means for pivotallysustaining the same,

and means effective through the motive power whereby the fan is turnedupon its pivotal support, with a spring connecting the motor with astationary part for producing reaction to the oscillatory movement ofthe fan, and means operating with and controlled by the fan and includedin the motor circuit for causing variation in the flow of currentghrough the motor during oscillation of the 15. The combination of afan, its motor fan and in engagement with the first named contact andadapted to break engagement therewith during oscillatory movement. ofthe fan, and means for connecting the'other terminal of the motor with aline wire whereby the flow of current through the motor may be varied. cl

16. The combination ofa fan-and its motor, means for ivotally sustaininthe same, and means e ective through the motive power whereby the fan isturned upon its pivotal support, witha lurality of springs connectingthe motor wit a stationa part for producing reaction to the oscil atorymovement of the fan, a contact connected with a line wire, and a'contactconnected with one of said springs to make and break circuit with thefirst named contact whereby the flow of current through the motor may bevaried.

17. The combination of a fan-and its motor, means for ivotallysustaining the same, and means e ective through the motive power wherebythe fan is turned upon its pivotal support, with a plurality of springsconnecting the motor with a stations. part for producing reaction to theoscil atory movement of the fan, a contact connected with a line wire, acontact connected with one of said springs to make and break circuitwith the first named contact, and a resistance connected with the otherof said springs and with a line wire, whereby when the circuit throughsaid contacts is broken the resistance will be included in the circuitof the motor whereby the flow of current through the motor may bevaried. v a

18. The combination of a fan, its motor and means for ivotallysustaining the same, and means e ective through the motive power wherebythe fan is turned upon its pivotal support, with a spring connect ng themotor with a stationary part for producing reaction to the oscillatorymot "cent of the fan, a contact located concentrically with respect tothe axis of oscillation of the fan structure, a contact connected vviththe fan structure and in engagement with the first flowv of currentthrough the 19. The combination of a fan and motor, means forEivotally'sustainingkthe same,

and, ineansle ective through t e] motive power-whereby the fan is turnedupon its pivotal support with 'a spring connecting the motor with astationary part-for produc-- ing reaction to theoscillatory'movementoithefan', a contact located concentricall with respect to the axis. ofoscillation oft 6 fan structure, a contact connected with the fan'structure and in engagement with the first "jo named contact, means tocause said contacts to break engagement during. the oscillatory movementof t e fan vstructure,and a resistance connected witha line wirecontrolled by said contacts, whereby when circuit is of the structure II g HER-Bear's, BROWN.

' brokenthrough said contacts current will flow. .throu h the;resistance to the motor and v where y the fiowof currentthrough themotor will bevaried;

20; The c'ombination of a fan and its mow. 30

tor, with a pivoted 'p'ost connected with the motor, a memberindependent of the fan structure disposed concentrically. with respectto the ivot'al axis of said structure and adjustable a out-said axis, asprm COH eCi'r,

ing said adjustable member with t e-moto'r, and means adapted tocooperate with sald spring in any position of the'adjustable memher toproduce an oscillatory movement of the fan structure about 'its'pivotalaxis, the

general direction of the. column of air flowing from the-fan beingalteredby moving the" adjustable member around-the pivotal axisWitnesses: T; F, vBoumwn,

R. 'E. LIEBESMAN}.

